Global ETD Search
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Showing 1 to 9 of 9 for “"Mineral system"”.
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Investigating the Influence of the Electrochemical Environment on the Flotation of a Mixed Sulphide Mineral System of Bornite and Chalcocite
… critical front-end process used to remove gangue minerals and concentrate the copper minerals. However, flotation is an electrochemically intense process with multiple redox reactions taking place simultaneously. The interdependency of these processes makes it extremely difficult to isolate the …
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Optimization of a Copper/Molybdenum Flotation Circuit by Depressing Pyrite from the Rougher Flotation Stage Using Different Scheme of Reagents
… interaction between the grinding media - sulfide mineral system that affects the recovery of copper. Thus, researchers have used chrome grinding media resulting in better recoveries. Due to manufacturing issues, this study could not perform tests using chrome grinding media. Thus, it implemented …
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Genesis and structure of the San Albino orogenic gold deposit, NW Nicaragua with implications for Mesozoic tectonic and metallogenic processes
… the geometry of ore zones within these systems. Thus, structural investigations are needed to establish a holistic deformational framework encompassing the entirety of the geological history for a host region. The San Albino orogenic gold deposit of NW Nicaragua represents a poorly …
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Evaluación geológica del potencial de exploración aurífera en el distrito Gorbea, región de Antofagasta, Chile
El estudio de depósitos minerales desde la perspectiva del “Sistema Mineral” (Mineral Systems), es un enfoque implementado recientemente en la orientación conceptual de la exploración minera. Este concepto plantea que los yacimientos minerales de gran envergadura resultan de la conjunción, en …
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Regolith and associated mineral systems of the Eucla Basin, South Australia.
… documents previous research into the heavy mineral sands (HMS) of the Eucla Basin. It presents new research designed to incorporate previous work, and to then encourage a broadening of research into the future. Specifically, this thesis is dedicated to demonstrating the importance of …
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The role of surfactants in the leaching of zinc sulphide minerals at temperatures above the melting point of sulphur
… liquid sulfur-aqueous zinc sulphate-zinc sulfide mineral system has been studied. The effect of the various surfactants on the liquid sulfur-aqueous system interfacial tensions and the liquid sulfur-mineral contact angle were measured in a high temperature-high pres-sure apparatus. In the absence …
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Application of Hydrogen and Oxygen Isotope Ratios of Water to the Study of Evaporation, Palaeoclimate, and Ancient Marine Conditions
… of the use of water isotopes from hydrated minerals is applied to a novel mineral system. Of fundamental importance to the hydrological cycle is the process of evaporation. Yet, under- standing how water isotopes behave as they experience evaporation remains poorly quantified. One limitation …
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On the selective flotation of pentlandite from pyrrhotite in Sheba's Ridge ores
… one of the most important group of ore minerals. In the context of South Africa, the Bushveld Igneous Complex (BIC) sulphides play a very important role in that they are largely associated with the valuable platinum group elements (PGEs) and platinum group minerals (PGMs). Typically, the …
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Recognising cryptic alteration surrounding the Mount Isa Copper Deposits: Implications for controls on fluid flow, and mineral exploration
… cryptic alteration haloes associated with copper mineralisation at Mount Isa, Northwest Queensland, Australia. New insights from hydrothermal alteration were used to constrain aspects of hydrothermal fluid flow and fluid-rock interactions that occurred as part of the mineralising system …